/**
 * Software License, Version 1.0
 * 
 * Copyright 2003 The Trustees of Indiana University.  All rights reserved.
 * 
 *
 *Redistribution and use in source and binary forms, with or without 
 *modification, are permitted provided that the following conditions are met:
 *
 *1) All redistributions of source code must retain the above copyright notice,
 * the list of authors in the original source code, this list of conditions and
 * the disclaimer listed in this license;
 *2) All redistributions in binary form must reproduce the above copyright 
 * notice, this list of conditions and the disclaimer listed in this license in
 * the documentation and/or other materials provided with the distribution;
 *3) Any documentation included with all redistributions must include the 
 * following acknowledgement:
 *
 *"This product includes software developed by the Community Grids Lab. For 
 * further information contact the Community Grids Lab at 
 * http://communitygrids.iu.edu/."
 *
 * Alternatively, this acknowledgement may appear in the software itself, and 
 * wherever such third-party acknowledgments normally appear.
 * 
 *4) The name Indiana University or Community Grids Lab or NaradaBrokering, 
 * shall not be used to endorse or promote products derived from this software 
 * without prior written permission from Indiana University.  For written 
 * permission, please contact the Advanced Research and Technology Institute 
 * ("ARTI") at 351 West 10th Street, Indianapolis, Indiana 46202.
 *5) Products derived from this software may not be called NaradaBrokering, 
 * nor may Indiana University or Community Grids Lab or NaradaBrokering appear
 * in their name, without prior written permission of ARTI.
 * 
 *
 * Indiana University provides no reassurances that the source code provided 
 * does not infringe the patent or any other intellectual property rights of 
 * any other entity.  Indiana University disclaims any liability to any 
 * recipient for claims brought by any other entity based on infringement of 
 * intellectual property rights or otherwise.  
 *
 *LICENSEE UNDERSTANDS THAT SOFTWARE IS PROVIDED "AS IS" FOR WHICH NO 
 *WARRANTIES AS TO CAPABILITIES OR ACCURACY ARE MADE. INDIANA UNIVERSITY GIVES
 *NO WARRANTIES AND MAKES NO REPRESENTATION THAT SOFTWARE IS FREE OF 
 *INFRINGEMENT OF THIRD PARTY PATENT, COPYRIGHT, OR OTHER PROPRIETARY RIGHTS. 
 *INDIANA UNIVERSITY MAKES NO WARRANTIES THAT SOFTWARE IS FREE FROM "BUGS", 
 *"VIRUSES", "TROJAN HORSES", "TRAP DOORS", "WORMS", OR OTHER HARMFUL CODE.  
 *LICENSEE ASSUMES THE ENTIRE RISK AS TO THE PERFORMANCE OF SOFTWARE AND/OR 
 *ASSOCIATED MATERIALS, AND TO THE PERFORMANCE AND VALIDITY OF INFORMATION 
 *GENERATED USING SOFTWARE.
 */
package cgl.narada.wsinfra.apps;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.Properties;
import java.util.StringTokenizer;

import javax.xml.soap.SOAPMessage;

import cgl.narada.wsinfra.deployment.Filter;
import cgl.narada.wsinfra.deployment.FilterPipeline;
import cgl.narada.wsinfra.deployment.FilterPipelineFactory;
import cgl.narada.wsinfra.deployment.NetworkSubstrate;
import cgl.narada.wsinfra.deployment.ServiceMessageListener;
import cgl.narada.wsinfra.deployment.impl.NBNetworkSubstrate;
import cgl.narada.wsinfra.exception.DeploymentException;
import cgl.narada.wsinfra.exception.MessageFlowException;
import cgl.narada.wsinfra.exception.ProcessingException;
import cgl.narada.wsinfra.util.SoapEnvelopeConversion;
import cgl.narada.wsinfra.util.SoapMessageAlteration;
import cgl.narada.wsinfra.util.SoapPrinter;
import cgl.narada.wsinfra.wsa.WsaEnvelopeCreator;
import cgl.narada.wsinfra.wsa.WsaEprCreator;
import cgl.narada.wsinfra.wsa.WsaProcessingFactory;

public class WseSubManagerEndpoint implements ServiceMessageListener {
  private NetworkSubstrate networkSubstrate;
  private FilterPipelineFactory filterPipelineFactory;
  private FilterPipeline filterPipeline;
  private WsaEprCreator wsaEprCreator;
  private WsaEnvelopeCreator wsaEnvelopeCreator;
  private SoapEnvelopeConversion soapEnvelopeConversion;
  private SoapMessageAlteration soapMessageAlteration;
  private Filter loggingFilter;
  private Filter counterFilter;
  private Filter wseSubscriptionManagerFilter;

  private int tracker;
  private String moduleName = "WseSubManagerEndpoint: ";

  public WseSubManagerEndpoint(String subManagerAddress,
			       Properties props) 
    throws DeploymentException {
    filterPipelineFactory =  FilterPipelineFactory.getInstance();
    filterPipeline = filterPipelineFactory.newFilterPipeline("WsePipeline");
    
    wseSubscriptionManagerFilter = 
      new WseSubscriptionManagerFilter(subManagerAddress);
    loggingFilter = new LoggingFilter();
    counterFilter = new CounterFilter();

    filterPipeline.addFilter(wseSubscriptionManagerFilter);
    filterPipeline.addFilter(counterFilter);
    filterPipeline.addFilter(loggingFilter);

    String pipelineInfo = moduleName + "Configured FilterPipeline" + 
      "\n\tWseSubscriptionManagerFilter=" +
      wseSubscriptionManagerFilter.getPositionInFilterPipeline() +
      "\n\tCounterFilter=" + counterFilter.getPositionInFilterPipeline() +
      "\n\tLoggingFilter=" + loggingFilter.getPositionInFilterPipeline() +"\n";
    
    System.out.println(pipelineInfo);
    
    networkSubstrate = new NBNetworkSubstrate();
    networkSubstrate.configureNetworking(props);
    
    networkSubstrate.registerPipeline(filterPipeline);
    filterPipeline.registerNetworkSubstrate(networkSubstrate);

    wsaEprCreator = WsaProcessingFactory.getWsaEprCreator();
    wsaEnvelopeCreator = WsaProcessingFactory.getWsaEnvelopeCreator();

    soapEnvelopeConversion = SoapEnvelopeConversion.getInstance();
    soapMessageAlteration = SoapMessageAlteration.getInstance();
  }

  public void onMessage(SOAPMessage soapMessage) {
    System.out.println(moduleName + "Received SOAP Message from the " +
		       "underlying infrastructure");
    printSoapMessage(soapMessage);
  }


  public void onException(Exception exception) {}


  public void changeFilterOrder() throws DeploymentException {
    int position = loggingFilter.getPositionInFilterPipeline() ;
    if (position == 0) {
      filterPipeline.moveFilter(loggingFilter, 1);
    } 

    if (position == 1) {
      filterPipeline.moveFilter(loggingFilter, 0);
    }     
  }



  public void printSoapMessage(SOAPMessage soapMessage) {
    String soapMsg = null;
    try {
      soapMsg = SoapPrinter.getStringRepresentation(soapMessage);
    } catch (Exception e) {
      System.out.println(moduleName + "Problems printing SOAPMessage"); 
    }
    System.out.println(soapMsg);
  }



  public String createLinkTo(Properties props, String linkType) 
    throws DeploymentException { 
    if (networkSubstrate == null) {
      System.out.println(moduleName + "The network substrate is null");
    }
    String linkId = 
      ( (NBNetworkSubstrate)networkSubstrate).createLinkTo(props, linkType);
    return linkId;
  }



  public void sendSOAPMessage(SOAPMessage soapMessage) 
    throws DeploymentException, MessageFlowException, ProcessingException {
    filterPipeline.processMessageFromApplication(soapMessage); 
  }



  public static void main(String[] args) {
    if (args.length != 2) {
      String errorReport = 
	"Usage: java cgl.narada.wsinfra.apps.WseSubManagerEndpoint " +
	"[hostname] [TCPServerPort]";
      System.out.println(errorReport);
      System.exit(0);
    }

    String hostname = args[0];
    String port = args[1];

    Properties props = new Properties();
    props.put("TCPServerPort", port);
    
    BufferedReader r = new BufferedReader(new InputStreamReader(System.in));
    StringTokenizer tok;
    String cmd;

    try {
      String wseSubManagerAddress = "tcp://" + hostname + ":" + port;
      WseSubManagerEndpoint endpoint = 
	new WseSubManagerEndpoint(wseSubManagerAddress, props);
      System.out.println("Listening to TCP communications on port [" + port 
			 + "]. \n Type h for help on commands");
      while (true) {
      	cmd = r.readLine();
	if (cmd == null) {
	  System.out.println("Terminating program ....");
	  break;
	}
	if(cmd.startsWith("h")) {
	  System.out.println("Create Link           -> cr hostname portNum ");
	  System.out.println("Send Data [from] [to] -> s  [source] [sink]" );
	}
	
	if (cmd.startsWith("cr")) {
	  tok = new StringTokenizer(cmd, " ");
	  tok.nextToken(); /* skipping the token "cr" */
	  Properties linkProps = new Properties();
	  linkProps.put("hostname", tok.nextToken());
	  linkProps.put("portnum", tok.nextToken());
	  String _linkId = endpoint.createLinkTo(linkProps, "tcp");
	  System.out.println("Created link with id => " + _linkId); 
	} /** end create link */
	
	
      } /* end while(true) */

    }catch (Exception ioe) {
      ioe.printStackTrace();
    } /* end try-catch */
  }/*end main() */

}
